Light-emitting structure and eye movement tracking simulation device

Abstract

The utility model discloses a light-emitting structure and an eye movement tracking simulation device, and belongs to the technical field of detection. The light-emitting structure comprises a substrate, a cover body, an infrared light source and a light-transmitting piece, wherein the cover body is arranged on the substrate and forms a containing space together with the substrate; the infrared light source is arranged on the substrate and is positioned in the accommodating space; the light transmitting piece is filled in the containing space to wrap the infrared light source and is connected with the substrate and the cover body. The accommodating space formed by the cover body and the substrate is filled with the light-transmitting part, and the infrared light source is coated with the light-transmitting part, so that gaps and errors can be effectively filled, the thickness of the cover body is reduced, the whole light-emitting structure is compact and light as much as possible, and the manufacturing cost is reduced; in addition, the connection strength between the cover body and the substrate can be improved, the stress of the whole light-emitting structure is effectively dispersed through the light-transmitting piece, and the reliability of the whole light-emitting structure is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection, and particularly relates to a light-emitting structure and an eye movement tracking simulation device. BACKGROUND

[0002] Eye movement tracking technology is an effective means to understand human cognitive behavior and is widely used in electronic devices such as augmented reality (AR), virtual reality (VR), mixed reality (MR), and extended reality (XR). Eye movement tracking technology often uses infrared light sources and eye movement cameras arranged near the periphery of the light machine to track the pupil and obtain the line of sight position and direction. However, there is often a gap between the lampshade and the infrared light source and a processing error, which leads to a larger space occupied by the lampshade and easily causes interference problems, affecting normal use. CONTENT OF THE UTILITY MODEL

[0003] The application aims to at least solve one of the technical problems in the related art. To this end, the application provides a light-emitting structure and an eye movement tracking simulation device, which can reduce the thickness of the cover body, make the entire light-emitting structure as compact and lightweight as possible, improve the reliability of the entire light-emitting structure, and reduce the manufacturing cost.

[0004] In a first aspect, the application provides a light-emitting structure, comprising:

[0005] a substrate;

[0006] a cover body arranged on the substrate and forming a containing space together with the substrate;

[0007] an infrared light source arranged on the substrate and located in the containing space;

[0008] a light-transmitting piece filled in the containing space to cover the infrared light source and connected with the substrate and the cover body.

[0009] According to the light emitting structure of the present application, the interference problem caused by the assembly gap and the processing error in the related art often needs to increase the overall thickness of the lampshade to ensure that there is enough space to accommodate the error and avoid the infrared light source. By filling the light-transmitting piece in the accommodating space formed by the cover body and the substrate, and covering the infrared light source with the light-transmitting piece, not only can the gaps and errors be effectively filled, the position of the light-transmitting piece relative to the infrared light source is lower, the thickness of the light emitting structure is reduced, the entire light emitting structure is as compact and light as possible, and the manufacturing cost is reduced; but also the connection strength between the cover body and the substrate can be increased, and the stress of the entire light emitting structure can be effectively dispersed by the light-transmitting piece, thereby improving the reliability of the entire light emitting structure. In addition, the setting of the cover body can also increase the strength of the substrate, so that the substrate can better support the infrared light source and reduce the bending and damage of the substrate.

[0010] According to an embodiment of the present application, the accommodating space has a first face and a second face, the first face and the second face are connected at an angle, the substrate has a first face, the cover body has a second face, and the infrared light source is arranged on the first face and spaced apart from the second face.

[0011] According to an embodiment of the present application, the light-transmitting piece has a light guide face, the edges of the light guide face are respectively connected to the sides of the first face and the second face away from each other, and the light guide face is an arc face.

[0012] According to an embodiment of the present application, the accommodating space further has a third face, the third face is connected at an angle with the first face and spaced apart from the second face, the cover body has the third face, and the infrared light source is located between the second face and the third face.

[0013] According to an embodiment of the present application, the light-transmitting piece has a light guide face, the light guide face is connected to the second face and the third face respectively, the light guide face is spaced apart from the first face, and the light guide face is an arc face.

[0014] According to an embodiment of the present application, the substrate has a ring structure, and the substrate forms a first through hole; the cover body includes a first ring body connected to the substrate, the first ring body forms a second through hole, the second through hole is coaxially arranged with the first through hole, and the second through hole is larger than the first through hole, and the inner wall of the accommodating space includes at least part of the side of the substrate close to the first ring body and the inner edge of the second through hole.

[0015] According to an embodiment of the present application, the cover body further includes a second ring body, the second ring body is spaced apart in the first ring body, the second ring body is connected to the substrate and forms a third through hole, the third through hole is coaxially arranged with the first through hole, and the inner wall of the accommodating space further includes the outer side wall of the second ring body.

[0016] According to an embodiment of the present application, the infrared light transmittance of the light-transmitting member is greater than >80%, and the visible light transmittance of the light-transmitting member is less than <10%; and / or

[0017] The Shore hardness of the light-transmitting member is not less than 80.

[0018] According to an embodiment of the present application, the substrate comprises:

[0019] A rigid circuit board, the cover, the infrared light source and the light-transmitting member are disposed on the same side of the rigid circuit board; or

[0020] A flexible circuit board and a reinforcing plate, the cover, the infrared light source and the light-transmitting member are disposed on one side of the flexible circuit board, and the reinforcing plate is disposed on the other side of the flexible circuit board.

[0021] According to an embodiment of the present application, the infrared light source comprises a plurality of light-emitting diodes, the plurality of light-emitting diodes are distributed in a ring shape, the light emitted by the light-emitting diodes is infrared light, and the cover is at least partially located outside the outer ring of the infrared light source.

[0022] In a second aspect, the present application provides an eye tracking simulation device, which comprises the light-emitting structure as described above.

[0023] According to the eye tracking simulation device of the present application, the entire light-emitting structure is made as compact and light as possible, the reliability of the entire light-emitting structure and the eye tracking simulation device is improved, the manufacturing cost is reduced, and the user experience is improved.

[0024] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0026] Figure 1 is a structural schematic diagram of a first light-emitting structure provided by an embodiment of the present application;

[0027] Figure 2 is a sectional view of the first light-emitting structure provided by an embodiment of the present application;

[0028] Figure 3 is a structural schematic diagram of the first light-emitting structure provided by an embodiment of the present application, with the light-transmitting member hidden;

[0029] Figure 4is a local schematic view of a part of the first light emitting structure in which the light transmitting member is hidden;

[0030] Figure 5 is a sectional view of the second light emitting structure;

[0031] Figure 6 is a structural schematic view of the second light emitting structure in which the light transmitting member is hidden;

[0032] Figure 7 is a local schematic view of a part of the second light emitting structure in which the light transmitting member is hidden;

[0033] Figure 8 is a structural schematic view of the third light emitting structure in which the light transmitting member is hidden.

[0034] Reference signs:

[0035] 100, substrate; 101, first surface; 102, first through hole;

[0036] 110, flexible circuit board; 120, reinforcing plate;

[0037] 130, rigid circuit board;

[0038] 200, cover; 201, second surface; 202, third surface;

[0039] 210, first ring body; 220, second ring body; 221, third through hole;

[0040] 300, infrared light source;

[0041] 400, light transmitting member; 401, light guide surface;

[0042] 500, accommodating space. DETAILED DESCRIPTION

[0043] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0044] The following refers to Figures 1-8 The light emitting structure provided by the embodiments of the present application is described below, which comprises a substrate 100, a cover 200, an infrared light source 300 and a light transmitting member 400. It should be noted that the shape and size of the substrate 100 can be designed according to actual needs, and the embodiments of the present application do not make specific limitations thereon. Exemplarily, the shape of the substrate 100 includes but is not limited to a circular ring shape.

[0045] The cover body 200 is arranged on the substrate 100 and cooperates with the substrate 100 to form a containing space 500; the infrared light source 300 is arranged on the substrate 100 and located in the containing space 500; and the light-transmitting member 400 is filled in the containing space 500 to cover the infrared light source 300 and connected with the substrate 100 and the cover body 200 respectively. It should be noted that the shape and size of the containing space 500 can be designed according to actual needs, and the present embodiment does not make specific limitation on this.

[0046] It can be understood that, due to the interference problem caused by assembly gap and processing error in the related art, the overall thickness of the lamp cover often needs to be increased to ensure that there is enough space to accommodate the error and avoid the infrared light source 300. By filling the light-transmitting member 400 in the containing space 500 formed by the cover body 200 and the substrate 100, and covering the infrared light source 300 with the light-transmitting member 400, not only can the gaps and errors be effectively filled, the position of the light-transmitting member 400 relative to the infrared light source 300 is lower, the thickness of the light-emitting structure is reduced, the entire light-emitting structure is as compact and lightweight as possible, and the manufacturing cost is reduced; but also the connection strength between the cover body 200 and the substrate 100 is increased, and the stress of the entire light-emitting structure is effectively dispersed by the light-transmitting member 400, improving the reliability of the entire light-emitting structure. In addition, the arrangement of the cover body 200 can also increase the strength of the substrate 100, so that the substrate 100 can better support the infrared light source 300, reducing the bending, breaking and other problems of the substrate 100.

[0047] According to the light-emitting structure provided in the embodiments of the present application, the entire light-emitting structure is as compact and lightweight as possible, the reliability of the entire light-emitting structure is improved, and the manufacturing cost is reduced.

[0048] In some embodiments, as shown in Figure 3 and Figure 4 , the containing space 500 has a first face 101 and a second face 201, the first face 101 and the second face 201 are connected at an included angle, the substrate 100 has the first face 101, the cover body 200 has the second face 201, and the infrared light source 300 is arranged on the first face 101 and spaced apart from the second face 201. It should be noted that the shape and size of the first face 101 and the second face 201 can be designed according to actual needs, and the present embodiment does not make specific limitation on this. Exemplarily, the first face 101 is a plane, the second face 201 is an arc face (in the circumferential direction), and the first face 101 and the second face 201 are connected at a right angle.

[0049] It can be understood that the first surface 101 is used for mounting and supporting the infrared light source 300, and the second surface 201 and the first surface 101 are connected at an angle to protect the infrared light source 300 while making the containing space 500 semi-closed, thereby facilitating the filling and curing of the light-transmitting piece 400. At the same time, the second surface 201 is spaced apart from the infrared light source 300, which can reduce the influence on the light path emitted by the infrared light source 300, and as much as possible to make the light-transmitting piece 400 can cover the infrared light source 300, improve the connection strength between the cover 200 and the substrate 100.

[0050] In some embodiments, as shown in Figure 2 and Figure 4 , the light-transmitting piece 400 has a light guide surface 401, the edges of the light guide surface 401 are connected to the sides of the first surface 101 and the second surface 201, respectively, and the light guide surface 401 is an arc surface. It should be noted that the shape and size of the light guide surface 401 can be designed according to actual needs, and this embodiment does not make specific limitations.

[0051] It can be understood that the two sides of the first surface 101 correspond to the first edge of the second surface 201 and the first edge of the light guide surface 401, respectively, and the second edge of the second surface 201 and the second edge of the light guide surface 401 correspond, thereby making the light-transmitting piece 400, the substrate 100 and the cover 200 cooperate with each other, improving the overall strength of the light-emitting structure. At the same time, making the light guide surface 401 an arc surface can optimize the light path design and improve the light path efficiency. Ensure and improve the light filling and iris spot effect.

[0052] In some embodiments, as shown in Figure 2 and Figure 4 , the light guide surface 401 is an arc surface that protrudes away from the substrate 100, that is, the refraction of the light path is used to improve the forming effect of the light spot on the iris, effectively guiding and focusing the light path. Of course, in other embodiments, the light guide surface 401 can also be an arc surface that is recessed away from the substrate 100, that is, the refraction of the light path is used to make the light uniformly distributed to a larger area, improve the uniformity and coverage of the illumination.

[0053] In some embodiments, as shown in Figure 6 and Figure 7 , the containing space 500 also has a third surface 202, the third surface 202 is connected at an angle with the first surface 101 and is spaced apart from the second surface 201, the cover 200 has a third surface 202, and the infrared light source 300 is located between the second surface 201 and the third surface 202. It should be noted that the shape and size of the third surface 202 can be designed according to actual needs, and this embodiment does not make specific limitations. Exemplarily, the third surface 202 is an arc surface, and the first surface 101 and the third surface 202 are connected at a right angle.

[0054] It can be understood that the two sides of the first surface 101 are connected at an angle with the second surface 201 and the third surface 202, which not only improves the auxiliary effect of the light-transmitting piece 400 in the curing process in the accommodating space 500, but also reduces the irradiation range of the infrared light source 300, and increases the connection points between the cover body 200 and the substrate 100, thereby improving the overall strength of the light-emitting structure.

[0055] In some embodiments, as shown in Figure 5 and Figure 7 , the light-transmitting piece 400 has a light guide surface 401 connected with the second surface 201 and the third surface 202, respectively, and the light guide surface 401 is spaced apart from the first surface 101 (for example, the light guide surface 401 and the first surface 101 are spaced apart in the height direction of the light-emitting structure), and the light guide surface 401 is an arc surface. Figure 5

[0056] It can be understood that the two sides of the first surface 101 correspond to the first side of the second surface 201 and the first side of the third surface 202, respectively, and the two sides of the light guide surface 401 correspond to the second side of the second surface 201 and the second side of the third surface 202, respectively, so that the light-transmitting piece 400, the substrate 100 and the cover body 200 cooperate with each other, thereby improving the overall strength of the light-emitting structure. At the same time, making the light guide surface 401 an arc surface can optimize the light path design and improve the light path efficiency, thereby ensuring and improving the light spot effect of the light supplement and the iris.

[0057] In some embodiments, as shown in Figure 5 and Figure 7 , the light guide surface 401 is an arc surface protruding away from the substrate 100, that is, the light path refraction is used to improve the forming effect of the light spot on the iris, and the light path is effectively guided and focused. Of course, in other embodiments, the light guide surface 401 can also be an arc surface recessed away from the substrate 100, that is, the light path refraction is used to make the light uniformly distributed to a larger area, thereby improving the uniformity and coverage of the illumination.

[0058] In some embodiments, the thickness of the cover body 200 ranges from 1 to 2 mm, which ensures that the light-transmitting piece 400 can cover the infrared light source 300 while maintaining the compactness of the light-emitting structure. The material of the cover body 200 includes but is not limited to polycarbonate (PC) or resin.

[0059] In some embodiments, the connection between the cover body 200 and the substrate 100 is adhesive, which ensures the stability of the surface contact between the cover body 200 and the substrate 100, and helps to maintain the lightness and thinness of the light-emitting structure. Of course, in other embodiments, the connection between the cover body 200 and the substrate 100 can also be threaded connection, plug-in connection or hot pressing, etc.

[0060] In some embodiments, as shown in Figures 1 to 8 ​As shown, the substrate 100 is in a ring structure, and the substrate 100 forms the first through hole 102; the cover 200 includes a first ring body 210 connected with the substrate 100, the first ring body 210 forms a second through hole, the second through hole is coaxially arranged with the first through hole 102, and the second through hole is larger than the first through hole 102, and the inner wall of the accommodating space 500 includes at least part of the side of the substrate 100 close to the first ring body 210 and the inner edge of the second through hole. It should be noted that the shapes of the first through hole 102 and the second through hole can be designed according to actual needs, and the present embodiment does not make specific limitation on this.

[0061] It should be noted that the "thickness direction" of the cover 200 in the above is parallel to the axis of the second through hole.

[0062] It can be understood that the substrate 100 is in a ring structure, that is, the center of the substrate 100 coincides with the axis of the first through hole 102, and the center of the first ring body 210 coincides with the axis of the second through hole. Since the second through hole and the first through hole 102 are coaxial and the aperture of the second through hole is larger than the aperture of the first through hole 102, that is, the surface of the substrate 100 close to the first ring body 210 and exposed in the second through hole forms the first surface 101, and the inner edge of the second through hole forms the second surface 201.

[0063] In some embodiments, as shown in FIG. 1, Figures 1 to 8 As shown, the substrate 100 and the first ring body 210 are both in a circular ring shape. Of course, in other embodiments, at least one of the substrate 100 and the first ring body 210 can also be in a square ring shape, and the present embodiment does not make specific limitation on this.

[0064] In some embodiments, as shown in FIG. 1, Figures 1 to 8 As shown, the outer diameter of the first ring body 210 is equal to the outer diameter of the substrate 100, so that the outer edge of the first ring body 210 and the outer edge of the substrate 100 are spliced to form a continuous surface, so that the whole light emitting structure also forms a ring structure, thereby improving the overall strength of the light emitting structure.

[0065] In some embodiments, as shown in FIG. 1, Figures 5 to 7 As shown, the cover 200 further includes a second ring body 220, the second ring body 220 is spaced apart in the first ring body 210, the second ring body 220 is connected with the substrate 100, and the second ring body 220 forms a third through hole 221, the third through hole 221 is coaxially arranged with the first through hole 102, and the inner wall of the accommodating space 500 further includes the outer side wall of the second ring body 220.

[0066] It can be understood that the center of the second ring body 220 forms a third through hole 221, the first through hole 102, the second through hole, and the third through hole 221 are coaxially arranged, the second ring body 220 is arranged at intervals on the first ring body 210, and the first ring body 210 and the second ring body 220 are arranged on the substrate 100, so that the light-transmitting piece 400 can be filled between the first ring body 210 and the second ring body 220, that is, the outer side wall of the second ring body 220 forms the third surface 202.

[0067] In some embodiments, as shown in Figure 6 , the aperture of the third through hole 221 is equal to the aperture of the first through hole 102, the inner edge of the third through hole 221 and the inner edge of the first through hole 102 are spliced to form a continuous surface, and the overall strength of the light-emitting structure is improved.

[0068] In some embodiments, as shown in Figure 6 , the second ring body 220 is in a circular ring shape. Of course, in other embodiments, the second ring body 220 can also be in a square ring shape, and the present embodiment does not make specific limitations in this regard.

[0069] In some embodiments, the infrared light transmittance of the light-transmitting piece 400 is greater than >80%, and the visible light transmittance of the light-transmitting piece 400 is less than <10%, the light emitted by the infrared light source 300 can be transmitted as much as possible by using the light-transmitting piece 400, and most of the visible light is effectively blocked or absorbed, so that the light-transmitting piece 400 has a filtering performance and the reliability of the light-emitting structure is improved. It should be noted that the material of the light-transmitting piece 400 only needs to have the performance of transmitting infrared light, and the present embodiment does not make specific limitations in this regard.

[0070] In some embodiments, the Shore hardness of the light-transmitting piece 400 is not less than 80. In this way, the surface of the light-transmitting piece 400 is as hard as possible, the possibility of being scratched by a hard object such as a nail is reduced, the light-transmitting and condensing effect of the light-transmitting piece 400 is prolonged, and the use performance of the light-emitting structure is ensured.

[0071] In some embodiments, as shown in Figure 2 , Figure 4 , Figure 5 and Figure 7 , the substrate 100 includes a flexible circuit board 110 and a reinforcing plate 120, the cover body 200, the infrared light source 300, and the light-transmitting piece 400 are arranged on one side of the flexible circuit board 110, and the reinforcing plate 120 is arranged on the other side of the flexible circuit board 110. Exemplarily, the flexible circuit board 110 and the reinforcing plate are both in a ring structure.

[0072] Understandably, the flexible printed circuit board 110 (FPC) is a flexible electronic substrate 100 capable of housing electronic components and an infrared light source 300 to enable electrical connection, control, and signal transmission of the infrared light source 300. It is typically made of a flexible polymer material, possessing good flexibility and bendability, reducing the volume and weight of the substrate 100. Simultaneously, a reinforcing plate 120 is connected to the flexible printed circuit board 110 to increase the mechanical strength of the substrate 100, facilitating subsequent connection of the flexible printed circuit board 110 to the cover 200 and the light-transmitting element 400. Specifically, both the flexible printed circuit board 110 and the rigid printed circuit board 130 form first through holes 102, and the portion of the flexible printed circuit board 110 away from the reinforcing plate 120 forms a first surface 101.

[0073] In some embodiments, the thickness of the reinforcing plate 120 is between 0.2 and 0.5 mm, ensuring sufficient rigidity to support the flexible circuit board 110 while maintaining the thinness of the substrate 100. The material of the reinforcing plate 120 includes, but is not limited to, steel.

[0074] In some embodiments, the thickness of the flexible circuit board 110 ranges from 0.1 to 0.2 mm, ensuring that the flexible circuit board 110 has sufficient flexibility and thinness while meeting the requirements of high-density wiring. The material of the flexible circuit board 110 includes, but is not limited to, polyimide (PI) or polyester (PET).

[0075] In some embodiments, the connection between the reinforcing plate 120 and the flexible circuit board 110 is adhesive bonding to ensure the stability of the surface contact between the reinforcing plate 120 and the flexible circuit board 110, which helps to maintain the thinness of the substrate 100. Of course, in other embodiments, the connection between the reinforcing plate 120 and the flexible circuit board 110 may also be threaded, plugged in, welded, or hot-pressed.

[0076] In other embodiments, such as Figure 8 As shown, the substrate 100 may also include a rigid circuit board 130, with the cover 200, infrared light source 300, and light-transmitting element 400 disposed on the same side of the rigid circuit board 130. Exemplarily, the rigid circuit board 130 has a ring-shaped structure. The rigid circuit board 130 includes, but is not limited to, FR4 or aluminum substrate 100.

[0077] It is understandable that by directly using the rigid circuit board 130, the electrical connection, control, and signal transmission of the infrared light source 300 are achieved while simultaneously providing support, which helps to reduce loosening and failure of the electrical connection. That is, the rigid circuit board 130 forms a first through hole 102, and the side of the rigid circuit board 130 where the infrared light source 300 is placed forms a first surface 101.

[0078] In some embodiments, the infrared light source 300 comprises a plurality of light emitting diodes, the plurality of light emitting diodes are distributed in a ring shape, the light emitting diodes emit infrared light, and the cover 200 is located outside the outer ring formed by the plurality of light emitting diodes. It should be noted that the number and specific distribution of the light emitting diodes can be designed according to actual needs, and the present embodiment does not make specific limitations thereto.

[0079] It can be understood that the plurality of light emitting diodes are distributed in a ring shape outside the first through hole 102, thereby improving the uniformity of the light emitted by the infrared light source 300.

[0080] Exemplarily, as shown in Figure 3 and Figure 8 , the cover 200 is located outside the outer ring formed by the plurality of light emitting diodes; as shown in Figure 6 , the first ring body 210 is located outside the outer ring formed by the plurality of light emitting diodes, and the second ring body 220 is located inside the inner ring formed by the plurality of light emitting diodes.

[0081] In some embodiments, as shown in Figure 3 , Figure 6 and Figure 8 , the light emitting diode adopts a square structure of 1.0mm*0.5mm*0.3mm, which has a small volume, is suitable for layout in a compact space, and is also convenient for surface mounting on the flexible circuit board 110 or the rigid circuit board 130.

[0082] The present application also provides an eye movement tracking simulation device. The eye movement tracking simulation device comprises the light emitting structure described above.

[0083] According to the eye movement tracking simulation device provided by the present application, the thickness of the cover 200 is reduced to make the entire light emitting structure as compact and light as possible, improve the reliability of the entire light emitting structure and the eye movement tracking simulation device, reduce the manufacturing cost, and improve the user experience.

[0084] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents a "or" relationship between the front and rear associated objects.

[0085] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0086] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0087] In the description of the present application, "a plurality of" means two or more.

[0088] In the description of the present application, "above" or "below" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0089] In the description of the present application, "above", "over" and "on" the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.

[0090] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0091] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A light emitting structure, characterized by The application relates to a light-emitting structure, which comprises: a substrate; a cover arranged on the substrate and jointly forming a containing space with the substrate; an infrared light source arranged on the substrate and located in the containing space; a light-transmitting member filled in the containing space to cover the infrared light source and connected with the substrate and the cover respectively.

2. The light emitting structure of claim 1, wherein, The containing space has a first surface and a second surface, the first surface and the second surface are connected at an angle, the substrate has a first surface, the cover has a second surface, the infrared light source is arranged on the first surface and spaced apart from the second surface.

3. The light emitting structure of claim 2, wherein, The light-transmitting member has a light guide surface, the edge of the light guide surface is connected with the side of the first surface and the second surface which are away from each other, and the light guide surface is an arc surface.

4. The light emitting structure of claim 2, wherein, The containing space further has a third surface, the third surface is connected with the first surface at an angle and spaced apart from the second surface, the cover has the third surface, and the infrared light source is located between the second surface and the third surface.

5. The light emitting structure of claim 4, wherein, The light-transmitting member has a light guide surface, the light guide surface is connected with the second surface and the third surface respectively, the light guide surface is spaced apart from the first surface, and the light guide surface is an arc surface.

6. The light emitting structure according to any of claims 1 to 5, c h a r a c t e r i z e d b y The substrate has a ring structure, the substrate forms a first through hole; the cover comprises a first ring body connected with the substrate, the first ring body forms a second through hole, the second through hole is coaxially arranged with the first through hole, and the second through hole is larger than the first through hole, and the inner wall of the containing space comprises at least part of the surface of the substrate close to the first ring body and the inner edge of the second through hole.

7. The light emitting structure of claim 6, wherein, The cover further comprises a second ring body, the second ring body is arranged in the first ring body in a spaced manner, the second ring body is connected with the substrate and forms a third through hole, the third through hole is coaxially arranged with the first through hole, and the inner wall of the containing space further comprises the outer side wall of the second ring body.

8. The light emitting structure according to any of claims 1 to 5, c h a r a c t e r i z e d b y The infrared light transmittance of the light-transmitting member is greater than 80%, and the visible light transmittance of the light-transmitting member is less than 10%; and / or The Shore hardness of the light-transmitting member is not less than 80.

9. The light emitting structure according to any of claims 1 to 5, c h a r a c t e r i z e d b y The substrate comprises: a rigid circuit board, the cover, the infrared light source and the light-transmitting member are arranged on the same side of the rigid circuit board; or a flexible circuit board and a reinforcing plate, the cover, the infrared light source and the light-transmitting member are arranged on one side of the flexible circuit board, and the reinforcing plate is arranged on the other side of the flexible circuit board.

10. The light emitting structure according to any of claims 1 to 5, c h a r a c t e r i z e d b y The infrared light source comprises a plurality of light-emitting diodes, the plurality of light-emitting diodes are distributed in a ring shape in a spaced manner, the light emitted by the light-emitting diodes is infrared light, and the cover is at least partially located outside the outer ring of the infrared light source.

11. An eye tracking simulation device, characterized by The application further relates to a light-emitting structure as claimed in any one of claims 1 to 10.

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